Author(s)

Date (publication)

Product Type

Topic Category

Keywords

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound

-35.0

East bound

150.78

West bound

150.68826

South bound

-35.13

Lineage

Bottom sediments were collected using a small Shipek type grab sampler.This device can collect an intact sample of sediment
up to 5 cm by 12 cm in area and 5 cm thick. Upon triggering, the grab immediately covers the sample, which prevents wash-out
of fine sediment during retrieval to the surface. The surface sediments (~0-2 cm) within the grab were spooned into falcon
vials and the porewaters were removed by centrifugation (9000 rpm; 5 minutes). The samples were then frozen for transport
to the laboratory at Geoscience Australia where they were freeze-dried and ground. Mineralogy was was determined on the powders
using a a Siemems D500/D501 series X-ray diffractometer. Mineral identification software was used to identify the d-spacing
of the peaks, and Siroquant was used to derive a semi-quantitative estimate of mineral abundance.